| 摘要 |
PROBLEM TO BE SOLVED: To suppress deflection of a door without requiring a door reinforcement structure such as a reinforcement shaft made of iron in an air passage opening/closing device having a door assembling structure in which the door is elastically deflected and door rotation shaft is forcibly fitting to both bearing parts at a case side. SOLUTION: The door 22 for opening/closing the air passage 16 has a door substrate part 22a; and a rotation shaft 22b integrally constituted with the door substrate part 22a. The rotation shaft 22 is arranged closely contacted with any one wall surface 33 of two wall surfaces 11b, 33 for dividing the air passage 16 and an axial intermediate part of the rotation shaft 22b is supported by a support member 35 provided on one wall surface 33. COPYRIGHT: (C)2006,JPO&NCIPI
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